US3672677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frangible in flight arrow head cover
Assignee: Individual
•
Filing: 1970-08-20
•
Granted: 1972-06-27
•
Expires: 1990-08-20
Abstract
Abstract A novel, in-flight cover to protect arrow points and archers during handling of arrows has been invented. The novel cover has an aerodynamic external shape and fractures upon impact with a target. It is constructed preferably of a frangible material and has a center opening to accommodate an arrow point and to frictionally secure itself thereto. The external surface is preferably conical in shape and may have vanes cut in the surface thereof to provide stability for arrow shafts in flight. Frangible cellular materials such as polystyrenes, polyurethanes and the like are useful construction materials. The novel covers of this invention may protect various types of points such as hunting points, field tips and the like. An insertion device for placing the cover on an arrow comprising a hard, rigid material having an internal opening having substantially the same shape as the external surface of the cover is also provided.
Inventors
- 👤 Vern E Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:04
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/02; F42B6/08
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
89 words
An in flight cover for arrow points which protects during handling and fractures upon impact comprising a. a frangible material having an external surface of aerodynamic shape, and b. an internal central cavity opening in the rear face of said cover and having such dimensions so as to frictionally secure said cover to an arrow point, c. said cover being of such a material and having a wall thickness sufficiently thin that fracture of said cover occurs upon impact of an arrow having said cover thereon with a target.
Claim 2
Dependent Claim
89 words
An in flight cover for arrow points which protects during handling and fractures upon impact comprising a. a frangible material having an external surface of aerodynamic shape, and b. an internal central cavity opening in the rear face of said cover and having such dimensions so as to frictionally secure said cover to an arrow point, c. said cover being of such a material and having a wall thickness sufficiently thin that fracture of said cover occurs upon impact of an arrow having said cover thereon with a target.
Claim 3
Dependent Claim
24 words
The arrow cover of claim 1 wherein the shape of the external surface is conical, the fore end being smaller than the aft end.
Claim 4
Dependent Claim
13 words
The arrow cover of claim 1 having a plurality of stabilization vanes therein.
Claim 5
Dependent Claim
42 words
The arrow cover of claim 1 wherein the central, internal cavity extends along the center, longitudinal axis of said cover from its rear face to its front face, the rear opening of said cavity having a greater width than the front opening.
Claim 6
Dependent Claim
46 words
The arrow cover of claim 4 wherein flap-like tabs are secured to the rear face of said cover substantially perpendicularly to the center longitudinal axis of said cover adapted to contact the rear surface of an arrow point and substantially secure said cover to said point.
Claim 7
Dependent Claim
42 words
The arrow cover of claim 4 wherein a plurality of longitudinal splines raised above the outer surface of the internal central opening are provided to contact the forward portion of an arrow shaft when said cover is in place on an arrow.
Claim 8
Dependent Claim
16 words
The arrow cover of claim 4 wherein a plurality of vanes are recessed in said cover.
Claim 9
Dependent Claim
17 words
The arrow cover of claim 7 wherein a pair of opposed vanes are recessed in said cover.
Claim 10
Dependent Claim
33 words
The arrow cover of claim 4 wherein the wall thickness between said internal opening and the front face of said cover is sufficiently thin to permit easy puncturing by a blunt arrow point.
Claim 11
Dependent Claim
26 words
The arrow cover of claim 1 wherein the central internal cavity has slot-like openings extending radially therefrom adapted to accommodate the blades of a hunting arrow.
Claim 12
Dependent Claim
48 words
The arrow cover of claim 10 wherein flap-like tabs are disposed substantially perpendicularly to the center longitudinal axis of said cover in the outermost surface of said slot-like openings adapted to be sliced by the edge of a hunting point and substantially secure said cover to said point.
Claim 13
Dependent Claim
36 words
The arrow cover of claim 10 wherein the wall thickness between the external surface and the outer edge of said slot openings is sufficiently thin to permit easy slicing by the blades of said hunting arrow.
Claim 14
Dependent Claim
14 words
The arrow cover of claim 1 wherein the frangible material is a cellular plastic.
Claim 15
Dependent Claim
13 words
The arrow cover of claim 13 wherein the cellular plastic is cellular polystyrene.
Claim 16
Dependent Claim
12 words
The arrow cover of claim 1 wherein predetermined fracture lines are provided.
Claim 17
Dependent Claim
49 words
An arrow comprising a shaft, an arrow point and an in-flight cover having an aerodynamic shape frictionally secured to said arrow, said cover being of such a material and having a wall thickness sufficiently thin that fracture of said cover occurs upon impact of said cover with a target.
Claim 18
Dependent Claim
49 words
An arrow comprising a shaft, an arrow point and an in-flight cover having an aerodynamic shape frictionally secured to said arrow, said cover being of such a material and having a wall thickness sufficiently thin that fracture of said cover occurs upon impact of said cover with a target.
Claim 19
Dependent Claim
11 words
The arrow of claim 16 wherein said cover has stabilizing vanes.
Claim 20
Dependent Claim
10 words
The arrow of claim 17 wherein said shaft is featherless.
Claim 21
Dependent Claim
21 words
The arrow of claim 18 wherein said shaft has a double V-shaped, open notch at the aft end of said shaft.
Claim 22
Dependent Claim
51 words
In combination with an arrow cover of the type set forth in claim 1, an insertion device comprising a hard, rigid material having an internal opening having substantially the same shape as the external surface of said cover and having alignment means for aligning said cover during placement of an arrow.
References Cited (Backward Citations)
GB234255A
Cited
US1554653A
Cited
US2212345A
Cited
US2620190A
Cited
US2611354A
Cited
US3110336A
Cited
US3528662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |